The cell is considered to be the most basic living unit.
Above a pH of 7, pepsin becomes irreversibly denatured. Pepsin was the first enzyme to ever be discovered, and it was discovered by <span>Theodor Schwann.</span>
Answer:Ice melts when heat energy causes the molecules to move faster, breaking the hydrogen bonds between molecules to form liquid water. In the melting process, the water molecules actually absorb energy.
Explanation:
Organisms that eat they producers or that don't make their own food
